This hearty and filling casserole features a savory combination of hard-boiled eggs, sausage, cheese, and a creamy base. It's a wonderful dish for breakfast, brunch, or even a light dinner.
Why You’ll Love This Recipe
This casserole is a fantastic way to use up extra hard-boiled eggs while making something satisfying and delicious. It’s a versatile dish that offers rich flavors, an indulgent texture, and is customizable to suit your taste. Whether you serve it at breakfast or dinner, it’s sure to become a favorite!
Ingredients
- 8 hard-boiled eggs, peeled and sliced
- ½ pound breakfast sausage, cooked and crumbled
- 1 cup shredded Cheddar cheese
- ½ cup milk
- ½ cup heavy cream
- 1 teaspoon mustard powder
- ½ teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon garlic powder
- ¼ teaspoon onion powder
- 2 tablespoons butter
(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)
Directions
- Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking dish with butter.
- Layer the sliced eggs and crumbled sausage in the bottom of the baking dish.
- In a mixing bowl, whisk together the milk, heavy cream, mustard powder, salt, pepper, garlic powder, and onion powder.
- Pour the mixture evenly over the eggs and sausage. Sprinkle the shredded Cheddar cheese on top.
- Dot the top with small pieces of butter.
- Bake in the preheated oven for 25-30 minutes or until the casserole is bubbly and golden on top.
Servings and Timing
- Servings: 6
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Total Time: 40 minutes
Variations
- Vegetarian Option: Skip the sausage and add in more vegetables such as spinach or bell peppers for a veggie-packed version.
- Cheese Swap: Swap out Cheddar cheese for Monterey Jack or Swiss for a different flavor profile.
- Add Herbs: Fresh herbs like parsley or thyme can be added for an extra layer of flavor.
Storage/Reheating
Store any leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave for 1-2 minutes or bake in the oven at 350°F (175°C) for about 10-15 minutes until warmed through.
FAQs
1. Can I make this casserole ahead of time?
Yes, you can prepare the casserole up to 24 hours in advance. Cover it with plastic wrap or foil and refrigerate it until you're ready to bake.
2. Can I use frozen sausage?
Frozen sausage can be used, but be sure to fully cook it before adding it to the casserole.
3. Can I substitute the heavy cream with something else?
Yes, you can substitute heavy cream with half-and-half or milk for a lighter version.
4. Can I use raw eggs in the casserole?
It’s best to use hard-boiled eggs, as they provide the desired texture and flavor for this casserole.
5. What can I serve with this casserole?
This dish pairs wonderfully with a side of fresh fruit, a green salad, or some crispy toast.
6. How do I know when the casserole is done baking?
The casserole is done when it’s golden and bubbly, and a knife inserted into the center comes out clean.
7. Can I freeze this casserole?
Yes, you can freeze the casserole before baking. Wrap it tightly in plastic wrap and foil and freeze for up to 3 months. Bake from frozen at 350°F (175°C) for 40-45 minutes.
8. Is this casserole spicy?
The casserole is not spicy unless you add spicy sausage or other hot seasonings. Adjust the spices to your preference.
9. Can I use different kinds of cheese?
Yes, feel free to experiment with different cheeses such as mozzarella, Gouda, or a sharp cheese for a stronger flavor.
10. Can I make this casserole dairy-free?
For a dairy-free version, use dairy-free cheese, substitute the milk and cream with almond or oat milk, and use a plant-based butter.
Conclusion
Hard-boiled egg casserole is a comforting and filling dish perfect for busy mornings or casual gatherings. With its rich flavors and customizable options, it’s sure to become a staple in your recipe collection.

Hard-Boiled Egg Casserole
- Total Time: 40 minutes
- Yield: 6 servings
- Diet: Vegetarian
Description
This Hard-Boiled Egg Casserole is a hearty and delicious dish made with hard-boiled eggs, sausage, cheese, and a creamy base. Perfect for breakfast, brunch, or a light dinner, this easy casserole recipe is rich in flavor and simple to prepare.
Ingredients
- 8 hard-boiled eggs, peeled and sliced
- ½ pound breakfast sausage, cooked and crumbled
- 1 cup shredded Cheddar cheese
- ½ cup milk
- ½ cup heavy cream
- 1 teaspoon mustard powder
- ½ teaspoon salt
- ½ teaspoon black pepper
- ¼ teaspoon garlic powder
- ¼ teaspoon onion powder
- 2 tablespoons butter
Instructions
- Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish with butter.
- Layer the sliced eggs and crumbled sausage in the bottom of the baking dish.
- Whisk together milk, heavy cream, mustard powder, salt, pepper, garlic powder, and onion powder in a mixing bowl.
- Pour the mixture evenly over the eggs and sausage. Sprinkle shredded Cheddar cheese on top.
- Dot the casserole with small pieces of butter.
- Bake for 25-30 minutes until bubbly and golden on top.
Notes
- Make-Ahead Option: Prepare up to 24 hours in advance and refrigerate before baking.
- Storage: Keep leftovers in an airtight container in the fridge for up to 3 days.
- Reheating: Microwave individual portions for 1-2 minutes or bake at 350°F for 10-15 minutes.
- Customization: Swap the sausage for veggies, try different cheeses, or add fresh herbs for variety.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
Hard-Boiled Egg Casserole – Savory, Hearty Breakfast Delight